/*
 * Copyright (c) 2012 Jason Polites
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.isunland.managesystem.widget;

/**
 * @author Jason Polites
 */
@SuppressWarnings("all") public class MoveAnimation implements Animation {

  private boolean firstFrame = true;

  private float startX;
  private float startY;

  private float targetX;
  private float targetY;
  private long animationTimeMS = 100;
  private long totalTime = 0;

  private MoveAnimationListener moveAnimationListener;

  /* (non-Javadoc)
   * @see com.polites.android.Animation#update(com.polites.android.GestureImageView, long)
   */
  @Override public boolean update(GestureImageView view, long time) {
    totalTime += time;

    if (firstFrame) {
      firstFrame = false;
      startX = view.getImageX();
      startY = view.getImageY();
    }

    if (totalTime < animationTimeMS) {

      float ratio = (float) totalTime / animationTimeMS;

      float newX = ((targetX - startX) * ratio) + startX;
      float newY = ((targetY - startY) * ratio) + startY;

      if (moveAnimationListener != null) {
        moveAnimationListener.onMove(newX, newY);
      }

      return true;
    } else {
      if (moveAnimationListener != null) {
        moveAnimationListener.onMove(targetX, targetY);
      }
    }

    return false;
  }

  public void reset() {
    firstFrame = true;
    totalTime = 0;
  }

  public float getTargetX() {
    return targetX;
  }

  public void setTargetX(float targetX) {
    this.targetX = targetX;
  }

  public float getTargetY() {
    return targetY;
  }

  public void setTargetY(float targetY) {
    this.targetY = targetY;
  }

  public long getAnimationTimeMS() {
    return animationTimeMS;
  }

  public void setAnimationTimeMS(long animationTimeMS) {
    this.animationTimeMS = animationTimeMS;
  }

  public void setMoveAnimationListener(MoveAnimationListener moveAnimationListener) {
    this.moveAnimationListener = moveAnimationListener;
  }
}
